103 entries under vague topic. ×

11
undefined(adjective, rough, uncertain, doubtful, dim)
10
dubious(adjective, rough, uncertain, unreasonable, doubtful)
10
uncertain(adjective, clear, rough, difficult, dark)
9
confusing(adjective, hard, uncertain, unclear)
9
formless(adjective, unclear, chaotic, indistinct)
9
imprecise(adjective, rough, unknown, unclear)
9
involved(adjective, hard, difficult, complex, sophisticated)
9
subtle(adjective, quiet, hard, sharp, plain)
8
complicated(adjective, hard, difficult, complex, sophisticated)
7
inexact(adjective, weak, rough, dark, dim)
6
loose(adjective, hard, rough, delicate, complex)
6
questionable(adjective, uncertain, doubtful, shaky)
4
unspecified(adjective, rough, strange, mysterious)
4
elusive(adjective, subtle, hazy, indistinct)
4
general(adjective, rough, unknown, unclear)
4
gray(verb, adjective, dull, cover, confuse)
4
inconclusive(uncertain, shaky, restricted, unclear)
4
intangible(adjective, unknown, general, subtle)
4
undetermined(adjective, weak, rough, dark, strange)
4
unspecific(adjective, unknown, general, unclear)
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APASmart Define. (2016). obscure thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/obscure/thesaurus/synonyms
ChicagoSmart Define. 2016. "obscure thesaurus" https://smartdefine.org/obscure/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, obscure thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/obscure/thesaurus/synonyms>.
MLASmart Define. "obscure thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/obscure/thesaurus/synonyms>